Articles with "aperture synthesis" as a keyword



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Expansion Design of Interferometric Aperture Synthesis Arrays Based on Multi-Objective Optimization

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2018.2884813

Abstract: This paper presents a study on expansion design of thinned arrays in interferometric aperture synthesis radiometers. The design problem deals with how to properly employ a limited number of antenna elements around a fixed array… read more here.

Keywords: aperture synthesis; based multi; design; multi objective ... See more keywords
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System Reliability Optimization of Thinned Linear Arrays in Interferometric Aperture Synthesis Radiometers

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Published in 2021 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2021.3080713

Abstract: This letter deals with linear array design for satisfactory performance of system reliability in interferometric aperture synthesis radiometer (IASR), which is important to the instrument robustness against failures. We address the reliability performance in the… read more here.

Keywords: interferometric aperture; system reliability; aperture synthesis; reliability ... See more keywords
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Channel Compressive Aperture Synthesis

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Published in 2020 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2019.2937984

Abstract: Aperture synthesis (AS) passive imaging technique has been proven effective in remote sensing for high resolution. Generally, a synthetic aperture radiometer needs the same number of channels as the antennas. As a consequence, the system… read more here.

Keywords: compressive aperture; aperture; channel compressive; aperture synthesis ... See more keywords
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Maximum-Rank Arrays for Two-Dimensional Mirrored Aperture Synthesis

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Published in 2021 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2020.2978013

Abstract: In 2-D mirrored aperture synthesis (2-D MAS), the array configuration determines the rank of the transformation matrix, which can affect the accuracy of the solved cosine visibilities. Ultimately, errors in solved cosine visibilities degrade the… read more here.

Keywords: mirrored aperture; rank arrays; maximum rank; aperture synthesis ... See more keywords
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Initial Results of H-Matrix Reconstruction Method for 1-D Mirrored Aperture Synthesis Radiometers

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Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2020.3046003

Abstract: The mirrored aperture synthesis radiometer (MASR) has been proposed for high-resolution observation in recent years. Since the MASR is a kind of linear system, the matrix reconstruction method should be an alternative for image reconstruction… read more here.

Keywords: reconstruction; mirrored aperture; reconstruction method; aperture synthesis ... See more keywords
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Rank-Full Arrays for 2-D Mirrored Aperture Synthesis

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Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2022.3204344

Abstract: The arrangement of the antenna array of the mirrored aperture synthesis (MAS) determines the transformation matrix for solving the cosine visibilities. When the transformation matrix is rank deficient, the solved cosine visibilities will introduce the… read more here.

Keywords: aperture synthesis; rank full; transformation matrix; mirrored aperture ... See more keywords
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Coherent MIMO to Improve Aperture Synthesis Radar Imaging of Field-Aligned Irregularities: First Results at Jicamarca

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Published in 2018 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2017.2788425

Abstract: Multiple-input multiple-output (MIMO) radar techniques make use of multiple transmitters and multiple receivers to improve the spatial characterization of targets. In the case where the Bragg scattering $\vec {k}$ -vector can be assumed to be… read more here.

Keywords: aperture synthesis; radar imaging; synthesis radar; radar ... See more keywords
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Source Localization Based on Hybrid Coarray for 1-D Mirrored Interferometric Aperture Synthesis

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Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2021.3061447

Abstract: The mirrored interferometric aperture synthesis (MIAS) is a promising technique for high-resolution observation in microwave radiometry. In this article, we present a new source localization method based on a novel hybrid coarray that can be… read more here.

Keywords: localization; aperture synthesis; mirrored interferometric; hybrid coarray ... See more keywords
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Two-Dimensional Mirrored Aperture Synthesis with Four Tilted Planar Reflectors

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Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2022.3155473

Abstract: Setting two reflectors perpendicular to each other and an array produces mirrored aperture synthesis (MAS), which obtains a higher spatial resolution than aperture synthesis (AS) for the same antenna array. The proposal of the MAS… read more here.

Keywords: spatial resolution; aperture synthesis; synthesis; mirrored aperture ... See more keywords
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Image Reconstruction With Deep CNN for Mirrored Aperture Synthesis

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Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2022.3157870

Abstract: In mirrored aperture synthesis (MAS), the existing brightness temperature image reconstruction methods include inverse cosine transform and impulse matrix reconstruction methods. However, the quality of the MAS brightness temperature images reconstructed by the existing methods… read more here.

Keywords: reconstruction; mirrored aperture; image reconstruction; aperture synthesis ... See more keywords
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Deep Learning Imaging for 1-D Aperture Synthesis Radiometers

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Published in 2023 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2023.3249239

Abstract: For 1-D aperture synthesis (1-D AS) radiometers, truncated sampling occurs in the frequency domain due to the system baseline limitation. Therefore, there is an obvious Gibbs oscillation in the reconstructed image. To solve this problem,… read more here.

Keywords: aperture synthesis; synthesis radiometers; deep learning; method ... See more keywords